The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

GB094.08

Country / Post Great Britain
Date of Issue 29 September 2008
Primary theme Royalty & Monarchies
Subject 50th Anniversary of the County Definitives - Northern Ireland
Width 20.0 mm
Height 23.5 mm
Denomination 1st class
Number in set 9 (show set)
Layout/Format miniature sheet of 9 of 9 designs
Perforations 15 by 14
Stamp issuing authority Royal Mail of Great Britain
Printer Walsall Security Printers